A process and fabric weaving device for increasing the tear strength of fabrics

Abstract

This invention relates to the field of fiber processing technology, and in particular to a process and fabric weaving apparatus for increasing the tear strength of fabrics. The fabric weaving apparatus includes a warp knitting mechanism, a guide bar traversing mechanism, a transverse yarn laying mechanism, and a pull-and-take mechanism. This invention can provide fabrics with high tear strength. When a tearing force is applied, the weft yarn absorbs the transverse force and disperses the stress, forcing the tearing force to redirect or stop, thus increasing the fabric's tear strength. Furthermore, it ensures uniform and moderate tension in the woven fabric, reducing deformation and damage. The expansion rollers shrink the edges and push them outwards, eliminating the tendency to take in due to internal stress. Simultaneously, it enhances the interlayer bonding of the woven fabric and eliminates rebound stress, preventing inner layer wrinkling. It also provides real-time monitoring of edge collapse and functional coating damage, and dynamically adjusts the applied pressure and position to avoid deformation or damage to the woven fabric caused by excessive or insufficient local pressure.

Description

Technical Field

[0001] This invention relates to the field of fiber processing technology, and in particular to a process and fabric weaving device that can increase the tear strength of fabrics. Background Technology

[0002] Fabrics with increased tear strength are of great significance in the modern textile industry. Tear strength is a key indicator of a fabric's resistance to tearing and damage, directly affecting its durability and lifespan. Especially in clothing, industrial protective gear, outdoor equipment, and medical textiles, high-tear-strength fabrics effectively ensure product safety and reliability, enhancing user experience and product added value. However, existing fabrics generally suffer from insufficient tear strength, primarily due to uneven fabric structure and weak interlayer bonding.

[0003] Secondly, traditional warp knitting equipment lacks precise real-time adjustment methods for fabric tension control, causing the fabric tension to fluctuate during the pulling process. Furthermore, the uneven pressure distribution results in the fabric roll being "tight on one side and loose on the other," easily leading to single-end collapse. Additionally, during pulling and winding, the fabric roll edges are prone to unevenness, with the inside loose and the outside tight, causing excessive pressure on the inner layer of the fabric to form "dead creases." This prevents dye penetration during subsequent dyeing, resulting in "chrysanthemum-like" wrinkles. Summary of the Invention

[0004] Therefore, it is necessary to provide a process and fabric weaving device that can increase the tear strength of fabrics to solve at least one of the technical problems in the prior art.

[0005] A fabric weaving device includes a warp knitting mechanism, a guide bar traverse mechanism, a transverse yarn laying mechanism, and a pull-and-take mechanism. The warp knitting mechanism includes a warp knitting frame, a warp knitting output component, multiple knitting needles, sinkers, and multiple yarn guide needles. The warp knitting frame is installed at one end of the mounting ground, and the pull-and-take mechanism is installed at the other end of the mounting ground. The warp knitting output component, multiple knitting needles, sinkers, and multiple yarn guide needles are all installed in the warp knitting frame. The sinkers are used to fix the position of the old loops, prevent the fabric from floating, and assist in the formation of new loops. The warp knitting output component is used to synchronously output the movement sequence of multiple knitting needles, sinkers, and multiple yarn guide needles. The guide bar traverse mechanism includes a servo motor and a pattern cam. The servo motor and pattern cam are both installed in the warp knitting frame and are used to drive multiple yarn guide needles to move left and right, accurately controlling the amount and direction of traverse movement. The transverse yarn laying mechanism is installed in the warp knitting frame and is used to lay the weft yarn horizontally in a full-width weft-laying manner.

[0006] As a further improvement of the present invention, the tensioning and take-up mechanism includes a frame assembly, a guide tensioning assembly, a pre-bending assembly, and a take-up assembly. The frame assembly includes a tensioning frame and a take-up frame. The bottom of the tensioning frame is installed in the middle of the mounting ground, and the take-up frame is installed at the end of the mounting ground away from the warp knitting machine frame. A guide tensioning turntable protrudes from the middle of the inner side of the top surface of the tensioning frame. Pressing adjustment tables protrude from the bottom of the outer sides of both ends of the tensioning frame. A pre-bending mounting plate is provided in the middle of the tensioning frame. The two ends of the inner side of the top surface of the pre-bending mounting plate are respectively... The frame is equipped with a spreading turntable, an upper pressing turntable and a lower pressing turntable are respectively set in the middle of the outer side of the traction frame, a first transmission turntable is respectively set at both ends of the bottom of the outer side of the traction frame, an output turntable is respectively set at both ends of the bottom of the inner side of the traction frame, an infeed roller is rotatably set in the middle of the inner side of the traction frame, the top of the guide tensioning component is rotatably installed in the guide tensioning turntable, the pre-bending component is installed in the two pressing adjustment tables, the pre-bending mounting plate, the two upper pressing turntables and the two lower pressing turntables, and the winding component is installed in the winding frame.

[0007] As a further improvement of the present invention, the guiding tensioning assembly includes a rotating tensioning frame, a rotating adjusting motor, a fabric infeed roller, two pressure cylinders, a pressure roller, and a pressing rotary cutter. The top of the rotating tensioning frame is rotatably mounted in the guiding tensioning turntable. The rotating adjusting motor is mounted on one end of the inner side of the top surface of the tensioning frame, and the output shaft of the rotating adjusting motor is connected to one end of the top of the rotating tensioning frame. The fabric infeed roller is rotatably mounted on the bottom of the rotating tensioning frame. The two pressure cylinders are respectively mounted at both ends of the middle part of the rotating tensioning frame. The two ends of the pressure roller are respectively rotatably mounted on the output shafts of the two pressure cylinders. The two ends of the pressing rotary cutter are respectively rotatably mounted on the bottom of the rotating tensioning frame and are arranged adjacent to the pressure roller.

[0008] As a further improvement of the present invention, a pressing rotary motor is provided at one end of the pressing rotary cutter, and sensor mounting brackets are respectively provided at the bottom of both ends of the middle part of the rotating tensioning frame, and tension sensors are provided on the sensor mounting brackets.

[0009] As a further improvement of the present invention, the pre-bending assembly includes an unfolding roller, a winding and pressing element, an upper shaping roller, a lower shaping roller, and a bending pressure element. The two ends of the unfolding roller are rotatably mounted in two unfolding turntables, the winding and pressing element is mounted in two pressing adjustment tables and a pre-bending mounting plate, the two ends of the upper shaping roller are rotatably mounted in two upper pressing turntables, the two ends of the lower shaping roller are rotatably mounted in two lower pressing turntables, and the bending pressure element is mounted in the middle of the outer side of the traction frame and is located between the upper shaping roller and the lower shaping roller.

[0010] As a further improvement of the present invention, the winding and pressing element includes two pressing adjustment cylinders, two pressing adjustment slides, a lower pressure roller, an upper sliding plate, and an upper pressure roller. The bottoms of the two pressing adjustment cylinders are respectively installed in two pressing adjustment platforms. The two pressing adjustment slides are installed at the top of both ends of the traction frame. The bottom of the lower pressure roller is installed at the middle of the outer side of the top surface of the pre-bending mounting plate. The two ends of the upper sliding plate are respectively slidably installed in the two pressing adjustment slides, and the two ends of the bottom surface of the upper sliding plate are respectively connected to the output shafts of the two pressing adjustment cylinders. The top of the upper pressure roller is installed at the middle of the bottom surface of the upper sliding plate.

[0011] As a further improvement of the present invention, both the lower pressure roller and the upper pressure roller include a pressing seat, a pressing shaft and multiple cylindrical airbags. One end of the pressing seat is installed on the middle of the outer side of the top surface of the pre-bent mounting plate or the middle of the bottom surface of the upper sliding plate. The other end of the pressing seat is recessed with a pressing groove. The interior of the pressing seat is hollow, forming a hollow cavity. A high-temperature air inlet pipe is recessed in the middle of one side of the pressing seat. An air guide groove is recessed in the inner wall of the hollow cavity. The air guide groove communicates with the pressing groove. The two ends of the pressing shaft are rotatably installed on the two ends of the pressing groove. Multiple cylindrical airbags are installed at intervals along the length direction in the pressing shaft, and an air leakage gap is formed between the outer wall of the cylindrical airbag and the inner wall of the pressing groove.

[0012] As a further improvement of the present invention, the bending pressure element includes a first pressure mounting plate, a second transverse pressure mounting plate, a vertical pressure motor, and a bending pressure roller. The outer ends of the first pressure mounting plate and the second transverse pressure mounting plate are respectively mounted on both ends of the middle of the outer side of the traction frame. The inner sides of the first pressure mounting plate are respectively provided with vertical adjustment slide rails and vertical threaded columns, and a first helical gear is provided at the bottom of the vertical threaded column. The top and bottom of the inner end of the second transverse pressure mounting plate are respectively provided with transverse adjustment slide rails and transverse threaded columns, and a second helical gear is provided on one side of the transverse threaded column. A transverse synchronous turntable is provided on the bottom of the outer side of the second transverse pressure mounting plate, and the transverse synchronous turntable rotates. A cooling synchronization pipe is installed. A fourth helical gear is installed at one end of the cooling synchronization pipe near the horizontal synchronization turntable. The fourth helical gear meshes with the second helical gear. A horizontal adjustment motor is installed at the other end of the cooling synchronization pipe. The horizontal adjustment motor is installed in the middle of the outer side of the traction frame. A vertical pressure motor is installed at the bottom of the first pressure mounting plate, and its output shaft has a third helical gear protruding. The third helical gear meshes with the first helical gear. Sliding mounting blocks are rotatably installed at both ends of the bending pressure roller. One sliding mounting block is installed on both sides in the vertical adjustment slide rail and the vertical threaded column. The top and bottom of the other sliding mounting block are installed in the horizontal adjustment slide rail and the horizontal threaded column, respectively.

[0013] As a further improvement of the present invention, the winding assembly includes two winding pressure rollers, a pressure rotation motor and a floating roller. The two winding pressure rollers are respectively rotatably mounted on the top of the middle and inner side of the winding frame, the pressure rotation motor is mounted on one end of the winding frame and connected to one end of one of the winding pressure rollers, and the floating roller is mounted on the outer side of the winding frame.

[0014] A process for increasing the tear strength of fabrics is provided, applied to the aforementioned fabric weaving apparatus, the process comprising:

[0015] Step S1: The warp knitting output component drives multiple knitting needles to rise from the lowest point, and at this time the needle core is closed;

[0016] Step S2: The horizontal yarn laying mechanism is activated to lay the weft yarn horizontally onto the loops of multiple yarns in a full-width weft laying manner;

[0017] Step S3: When multiple needles reach the unwinding height, their needle cores open, and multiple needles hook the yarn. At this time, the sinker will press down the loop and the weft yarn, and prevent the needles from rising with the needles.

[0018] Step S4: The servo motor and the pattern cam drive the sinker to move backward to release the coil and weft yarn, and drive multiple guide needles to move laterally by one needle position. The warp knitting output component will drive multiple knitting needles to slightly lower to the padding height, so that multiple guide needles carry the yarn from the front of the original multiple knitting needles to the front of the adjacent multiple knitting needles, and the yarn follows and moves into the adjacent multiple knitting needles.

[0019] Step S5: The warp knitting output component drives multiple knitting needles to continue descending, locking multiple yarns into multiple knitting needles, and causing the old loops to come out of the needle tips of multiple knitting needles and be interlocked with the new loops formed by the new yarns.

[0020] The beneficial effects of this invention are as follows:

[0021] 1. This case can provide fabrics with high tear strength. When tearing force is applied, the weft yarn will absorb the lateral force and disperse the stress, causing the tearing force to be forced to change direction or stop, thereby increasing the tear strength of the fabric and preventing it from coming apart, ensuring the integrity of the fabric.

[0022] 2. This design ensures that the tension of the woven fabric is uniform and moderate, reducing deformation and damage. It also utilizes the spreading roller to shrink the edge and push it outward, eliminating the tendency to curl up caused by internal stress, thus ensuring the flatness and appearance quality of the fabric. At the same time, it uses the winding and pressing elements and the bending and pressing elements to enhance the interlayer bonding of the woven fabric and eliminate rebound stress, preventing the inner layer from rebounding and wrinkling, and improving the stability and hand feel of the fabric.

[0023] 3. This invention can monitor the collapse of woven fabric edges and damage to functional coatings in real time, promptly detect fabric abnormalities, and prevent deformation or damage to woven fabrics caused by excessive or insufficient local pressure by dynamically adjusting the pressure intensity and position, thereby extending the service life of the fabric. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of an embodiment of the present invention.

[0025] Figure 2 This is a three-dimensional schematic diagram of the warp knitting mechanism, the comb bar transverse movement mechanism, and the transverse yarn laying mechanism in one embodiment of the present invention.

[0026] Figure 3 This is a three-dimensional schematic diagram of a traction and winding mechanism in one embodiment of the present invention.

[0027] Figure 4 This is a three-dimensional schematic diagram of a guide tensioning component in one embodiment of the present invention.

[0028] Figure 5 This is a schematic diagram of the internal structure of the traction and winding mechanism in one embodiment of the present invention.

[0029] Figure 6 This is a three-dimensional schematic diagram of the traction and winding mechanism in another embodiment of the present invention.

[0030] Figure 7 for Figure 5 Enlarged view of point A in the middle.

[0031] Figure 8 This is a fracture view of the bending pressure element in one embodiment of the present invention.

[0032] Figure 9 This is a fracture view of the bending pressure element in another embodiment of the present invention.

[0033] In the picture:

[0034] 10. Warp knitting mechanism; 11. Warp knitting frame; 12. Warp knitting output assembly; 13. Knitting needles; 14. Sinking plate; 15. Yarn guide needles; 20. Guide bar traverse mechanism; 21. Servo motor; 22. Pattern disc cam; 30. Lateral yarn laying mechanism; 40. Pull-up and take-up mechanism; 50. Frame assembly; 51. Pull-up frame; 511. Guide tensioning turntable; 512. Pressing adjustment table; 513. Pre-bending mounting plate; 514. Upper pressing turntable; 515. Lower pressing... Turntable; 516, First transmission turntable; 518, Output turntable; 519, Feed roller; 510, Spreading turntable; 52, Winding frame; 60, Guide tensioning assembly; 61, Rotating tensioning frame; 611, Sensor mounting bracket; 63, Fabric feed roller; 64, Pressure cylinder; 65, Pressure roller; 66, Pressing rotary knife; 70, Pre-bending assembly; 71, Spreading roller; 72, Winding pressing element; 73, Upper shaping roller; 74, Lower shaping roller; 75, Bending pressure. Components; 721, Pressing Adjustment Cylinder; 722, Pressing Adjustment Slide Column; 723, Lower Pressure Roller; 724, Upper Sliding Plate; 725, Upper Pressure Roller; 726, Pressing Seat; 727, Pressing Rotary Shaft; 728, Cylindrical Airbag; 729, Pressing Rotary Groove; 761, Hollow Cavity; 762, Air Guide Groove; 763, High-Temperature Air Inlet Pipe; 764, Exhaust Gap; 751, First Pressing Mounting Plate; 752, Vertical Pressing Motor; 754, Bending Pressing Roller; 755 756. Second transverse pressure mounting plate; 757. Vertical adjustment slide rail; 758. Vertical threaded column; 759. First helical gear; 750. Transverse adjustment slide rail; 771. Transverse threaded column; 772. Second helical gear; 773. Third helical gear; 774. Transverse synchronous turntable; 775. Cooling synchronous pipe; 776. Fourth helical gear; 778. Sliding mounting block; 80. Winding assembly; 81. Winding pressure roller; 82. Floating roller; 83. Pressure rotation motor. Detailed Implementation

[0035] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0036] In the description of this invention, it should be noted that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0038] Please see Figures 1 to 9 A fabric knitting device includes a warp knitting mechanism 10, a guide bar traversing mechanism 20, a transverse yarn laying mechanism 30, and a pull-and-take mechanism 40. The warp knitting mechanism 10 includes a warp knitting frame 11, a warp knitting output assembly 12, multiple knitting needles 13, a sinker plate 14, and multiple yarn guide needles 15. The warp knitting frame 11 is installed at one end of the mounting ground, and the pull-and-take mechanism 40 is installed at the other end of the mounting ground. The warp knitting output assembly 12, multiple knitting needles 13, sinker plate 14, and multiple yarn guide needles 15 are all installed in the warp knitting frame 11. The sinker plate 14 is used for fixing... The old loop position is fixed to prevent the fabric from floating and to assist in the formation of new loops. The warp knitting output component 12 is used to synchronously output the movement sequence of multiple knitting needles 13, sinkers 14 and multiple guide needles 15. The comb bar transverse movement mechanism 20 includes a servo motor 21 and a pattern plate cam 22. The servo motor 21 and the pattern plate cam 22 are both installed in the warp knitting frame 11 and are used to drive multiple guide needles 15 to move left and right, and to precisely control the transverse movement amount and direction. The transverse yarn laying mechanism 30 is installed in the warp knitting frame 11 and is used to lay the weft yarn horizontally in a full-width weft laying manner.

[0039] The tensioning and take-up mechanism 40 includes a frame assembly 50, a guiding tensioning assembly 60, a pre-bending assembly 70, and a take-up assembly 80. The frame assembly 50 includes a tensioning frame 51 and a take-up frame 52. The bottom of the tensioning frame 51 is installed in the middle of the installation ground, and the take-up frame 52 is installed at the end of the installation ground away from the warp knitting machine frame 11. A guiding tensioning turntable 511 protrudes from the middle of the inner side of the top surface of the tensioning frame 51. Pressing adjustment tables 512 protrude from the bottom of the outer sides of both ends of the tensioning frame 51. A pre-bending mounting plate 513 is provided in the middle of the tensioning frame 51. A spreading turntable 510 protrudes from both ends of the inner side of the top surface of the pre-bending mounting plate 513. The outer middle part of the traction frame 51 is provided with an upper pressing turntable 514 and a lower pressing turntable 515, respectively. The bottom ends of the outer side of the traction frame 51 are respectively provided with a first transmission turntable 516, the bottom ends of the inner end of the traction frame 51 are respectively provided with an output turntable 518, and the middle part of the inner end of the traction frame 51 is rotatably provided with an infeed roller 519. The top of the guide tensioning assembly 60 is rotatably installed in the guide tensioning turntable 511. The pre-bending assembly 70 is installed in the two pressing adjustment tables 512, the pre-bending mounting plate 513, the two upper pressing turntables 514 and the two lower pressing turntables 515. The winding assembly 80 is installed in the winding frame 52.

[0040] The guiding tensioning assembly 60 includes a rotating tensioning frame 61, a rotating adjusting motor, a fabric feed roller 63, two pressure cylinders 64, a pressure roller 65, and a pressing rotary knife 66. The top of the rotating tensioning frame 61 is rotatably mounted in the guiding tensioning turntable 511. The rotating adjusting motor is mounted on one end of the inner side of the top surface of the tensioning frame 51, and the output shaft of the rotating adjusting motor is connected to one end of the top of the rotating tensioning frame 61. The fabric feed roller 63 is rotatably mounted on the bottom of the rotating tensioning frame 61. The two pressure cylinders 64 are respectively mounted at both ends of the middle part of the rotating tensioning frame 61. The two ends of the pressure roller 65 are respectively rotatably mounted on the output shafts of the two pressure cylinders 64. The two ends of the pressing rotary knife 66 are respectively rotatably mounted on the bottom of the rotating tensioning frame 61 and are arranged adjacent to the pressure roller 65.

[0041] A pressing rotary knife 66 is equipped with a pressing rotary motor at one end, and sensor mounting brackets 611 are respectively protruding from the bottom of both ends of the rotating tensioning frame 61. Tension sensors are installed on the sensor mounting brackets 611.

[0042] The pre-bending assembly 70 includes an unfolding roller 71, a winding and pressing element 72, an upper shaping roller 73, a lower shaping roller 74, and a bending pressure element 75. The two ends of the unfolding roller 71 are rotatably mounted in two unfolding turntables 510, the winding and pressing element 72 is mounted in two pressing adjustment tables 512 and a pre-bending mounting plate 513, the two ends of the upper shaping roller 73 are rotatably mounted in two upper pressing turntables 514, the two ends of the lower shaping roller 74 are rotatably mounted in two lower pressing turntables 515, and the bending pressure element 75 is mounted in the middle of the outer side of the traction frame 51 and is located between the upper shaping roller 73 and the lower shaping roller 74.

[0043] The winding and pressing element 72 includes two pressing adjustment cylinders 721, two pressing adjustment slide columns 722, a lower pressure roller 723, an upper sliding plate 724, and an upper pressure roller 725. The bottoms of the two pressing adjustment cylinders 721 are respectively installed in the two pressing adjustment tables 512. The two pressing adjustment slide columns 722 are installed at the top of both ends of the traction frame 51. The bottom of the lower pressure roller 723 is installed at the middle of the outer side of the top surface of the pre-bending mounting plate 513. The two ends of the upper sliding plate 724 are respectively slidably installed in the two pressing adjustment slide columns 722, and the two ends of the bottom surface of the upper sliding plate 724 are respectively connected to the output shafts of the two pressing adjustment cylinders 721. The top of the upper pressure roller 725 is installed at the middle of the bottom surface of the upper sliding plate 724.

[0044] Both the lower pressure roller 723 and the upper pressure roller 725 include a pressing seat 726, a pressing shaft 727, and multiple cylindrical airbags 728. One end of the pressing seat 726 is installed on the middle of the outer side of the top surface of the pre-bent mounting plate 513 or the middle of the bottom surface of the upper sliding plate 724. The other end of the pressing seat 726 is recessed with a pressing groove 729. The interior of the pressing seat 726 is hollow, forming a hollow cavity 761. A high-temperature air inlet pipe 763 is recessed in the middle of one side of the pressing seat 726. An air guide groove 762 is recessed in the inner wall of the hollow cavity 761. The air guide groove 762 is connected to the pressing groove 729. The two ends of the pressing shaft 727 are rotatably installed on the two ends of the pressing groove 729. Multiple cylindrical airbags 728 are installed at intervals along the length direction in the pressing shaft 727, and an air release gap 764 is formed between the outer wall of the cylindrical airbag 728 and the inner wall of the pressing groove 729.

[0045] For example, in one embodiment: the internal air pressure of the cylindrical airbag 728 located at the end of the pressing shaft 727 is 0.6-0.8 MPa to prevent edge collapse. The internal air pressure of the cylindrical airbag 728 located in the central area of ​​the pressing shaft 727 is maintained at 0.2-0.3 MPa to avoid damaging the functional coating of the fabric.

[0046] The bending pressure element 75 includes a first pressure mounting plate 751, a second transverse pressure mounting plate 755, a vertical pressure motor 752, and a bending pressure roller 754. The outer ends of the first pressure mounting plate 751 and the second transverse pressure mounting plate 755 are respectively mounted on both ends of the middle of the outer side of the traction frame 51. The inner ends of the first pressure mounting plate 751 are respectively provided with vertical adjustment slide rails 756 and vertical threaded columns 757. The bottom of the vertical threaded column 757 is provided with a first helical gear 758. The top and bottom of the inner end of the second transverse pressure mounting plate 755 are respectively provided with transverse adjustment slide rails 759 and transverse threaded columns 771. The side of the transverse threaded column 771 is provided with a second helical gear 772. The bottom of the outer side of the second transverse pressure mounting plate 755 is provided with a transverse synchronous turntable 774. A cooling device is rotatably mounted on the transverse synchronous turntable 774. Synchronization pipe 775, cooling synchronization pipe 775 is provided with a fourth helical gear 776 at one end near the transverse synchronization turntable 774. The fourth helical gear 776 is meshed with the second helical gear 772. The other end of the cooling synchronization pipe 775 is provided with a transverse adjustment motor. The transverse adjustment motor is installed in the middle of the outer side of the traction frame 51. The vertical pressure motor 752 is installed at the bottom of the first pressure mounting plate 751 and its output shaft is provided with a third helical gear 773. The third helical gear 773 is meshed with the first helical gear 758. The two ends of the bending pressure roller 754 are respectively provided with sliding mounting blocks 778. One sliding mounting block 778 is installed in the vertical adjustment slide rail 756 and the vertical threaded column 757 on both sides. The top and bottom of the other sliding mounting block 778 are respectively installed in the transverse adjustment slide rail 759 and the transverse threaded column 771.

[0047] The winding assembly 80 includes two winding pressure rollers 81, a pressure rotation motor 83, and a floating roller 82. The two winding pressure rollers 81 are rotatably mounted on the middle and the top of the inner side of the winding frame 52, respectively. The pressure rotation motor 83 is mounted on one end of the winding frame 52 and is connected to one end of one of the winding pressure rollers 81. The floating roller 82 is mounted on the outside of the winding frame 52.

[0048] The present invention also provides a process for increasing the tear strength of fabrics, wherein the process is applied to the above-mentioned fabric weaving device and includes the following steps:

[0049] Step S1: The warp knitting output component 12 drives multiple knitting needles 13 to rise from the lowest point, and at this time the needle core is closed;

[0050] Step S2: The horizontal yarn laying mechanism 30 is activated to lay the weft yarn horizontally onto the loops of multiple yarns in a full-width weft laying manner;

[0051] Step S3: When multiple knitting needles 13 reach the unwinding height, their needle cores open, and multiple knitting needles 13 hook the yarn. At this time, the sinker 14 will press down the loop and the weft yarn, and prevent the knitting needles 13 from rising with the needle.

[0052] Step S4: Servo motor 21 and pattern cam 22 drive sinker 14 to move backward to release coil and weft yarn, and drive multiple guide needles 15 to move laterally by one needle position. Warp knitting output component 12 drives multiple knitting needles 13 to slightly lower to the yarn pad height, so that multiple guide needles 15 carry yarn from the front of the original multiple knitting needles 13 to the front of the adjacent multiple knitting needles 13, and the yarn follows and moves into the adjacent multiple knitting needles 13.

[0053] Step S5: The warp knitting output component 12 drives multiple knitting needles 13 to continue descending, locking multiple yarns into the multiple knitting needles 13, and causing the old loops to come out from the needle tips of the multiple knitting needles 13 and be interlocked with the new loops formed by the new yarns.

[0054] This process involves the new loops interlocking longitudinally with the old loops in the braided chain, connecting the upper and lower horizontal rows and laterally pressing down on the weft yarn, thus "binding" it into the fabric structure. When tearing force is applied, the weft yarn absorbs and disperses the stress laterally, the braided chain prevents it from unraveling longitudinally, and the binding yarn ensures the overall integrity. This forces the tearing force to redirect or stop, thereby increasing the fabric's tear strength.

[0055] For example, in one embodiment: the padding yarn is composed of aramid, high-strength polyester, glass fiber, etc.

[0056] For example, in one embodiment: a laser sensor is provided on the outer side of the top surface of the pre-bending mounting plate 513. The laser sensor is located between the lower pressure roller 723 and the bending pressure roller 754 and is used to monitor the deformation of the woven fabric. Multiple cooling air jet holes are spaced apart along the length of one end of the cooling synchronization pipe 775 near the bending pressure roller 754. One end of the cooling synchronization pipe 775 is connected to an external cooling air jet device via a pipe. One sliding mounting block 778 has a recessed vertical threaded hole on its inner side. One sliding mounting block 778 is threadedly connected to a vertical threaded post 757 through the vertical threaded hole. One sliding mounting block 778 is slidably mounted on the outer side in a vertical adjusting slide rail 756. Another sliding mounting block 778 has a recessed horizontal threaded hole at its bottom. Another sliding mounting block 778 is threadedly connected to a horizontal threaded post 771 through the horizontal threaded hole. The top of another sliding mounting block 778 is slidably mounted in a horizontal adjusting slide rail 759.

[0057] The inner side of the high-temperature air inlet pipe 763 is connected to the hollow cavity 761, and the outer side of the high-temperature air inlet pipe 763 is connected to an external high-temperature jetting device through a pipe. A first transmission belt is fitted onto one end of the output turntable 518 and the feed roller 519, and a second transmission belt is fitted onto one end of the output turntable 518, the first transmission turntable 516, and the lower shaping roller 74. The outer walls of the spreading roller 71 are respectively recessed with left-handed and right-handed bidirectional involute threads with angles of 30°-45°. The body of the spreading roller 71 is made of rubber or polyurethane elastomer.

[0058] For example, in one embodiment: when the warp knitting mechanism 10, the guide bar transverse movement mechanism 20, and the transverse yarn laying mechanism 30 output the woven fabric, one end of the woven fabric is sequentially wound around the feed roller 63, the pressure roller 65, the feed roller 519, the spreading roller 71, the bending pressure roller 754, and the two take-up pressure rollers 81, and finally wound onto the floating roller 82. Subsequently, the rotation adjustment motor is started to drive the rotation tensioning frame 61 to rotate and move towards one end of the warp knitting mechanism 10, thereby making the woven fabric taut. Simultaneously, the two pressure cylinders 64 and the pressure rotating motor on the pressure rotating knife 66 will be started, thereby driving the pressure roller 65 to move downward and driving the pressure rotating knife 66 to rotate towards one end of the pressure roller 65, so as to evenly stretch the woven fabric. Then, guided by the feed roller 519, the woven fabric enters the spreading roller 71 at an angle of 5°-10° to avoid edge wrinkles caused by direct impact. The spreading roller 71 will push the shrinking edge outward to eliminate the winding tendency caused by internal stress.

[0059] Subsequently, the two pressing adjustment cylinders 721 will be activated, driving the upper sliding plate 724 to move downward along the two pressing adjustment slide columns 722, causing the upper pressure roller 725 to follow and the woven fabric to be clamped between the lower pressure roller 723 and the upper pressure roller 725. At the same time, the external high-temperature jet equipment will be activated, allowing external hot air to flow out from the vent gap 764 through the high-temperature air inlet pipe 763, the hollow cavity 761 and the air guide groove 762 to impact the woven fabric, enhancing the interlayer bonding of the multi-layer structure of the woven fabric. At the same time, the hot air will push up multiple cylindrical airbags 728 to apply pressure evenly to the woven fabric, eliminating rebound stress and preventing the inner layer of the woven fabric from rebounding and wrinkling. Meanwhile, the external cooling jet equipment will be activated and flow out from the cooling synchronization pipe 775, impacting the woven fabric to set its shape. Subsequently, it is fed into the winding assembly 80, where the woven fabric is wound up using two winding pressure rollers 81 and a floating roller 82.

[0060] For example, in one embodiment: when the woven fabric is output from the bending pressure element 75, the laser sensor monitors whether the woven fabric has collapsed edges or damaged functional coatings. When the functional coating is damaged, the laser sensor sends a signal to the pressing adjustment cylinder 721, causing the output shaft of the pressing adjustment cylinder 721 to move slightly upward, reducing the pressure of the upper pressure roller 725 on the woven fabric. When the spreading roller 71 is horizontally misaligned or the pressure of the cylindrical airbag 728 at the end is insufficient, resulting in single-end collapse, the vertical pressure motor 752 will start, driving the vertical threaded column 757 to rotate. At the same time, the horizontal adjustment motor will start, driving the cooling synchronization pipe 775 and the horizontal threaded column 771 to rotate accordingly, thereby causing the bending pressure roller 754 to tilt in one direction, applying pressure to the single-end position to compensate for the collapse, achieving uniform tension of the woven fabric, and preventing the high tear strength fabric from being deformed or damaged due to local overpressure or underpressure.

[0061] Installation process: The warp knitting frame 11 is installed at one end of the installation ground. The warp knitting output component 12, multiple knitting needles 13, sinker plate 14, and multiple yarn guide needles 15 are all installed in the warp knitting frame 11. The servo motor 21 and the pattern cam 22 are also installed in the warp knitting frame 11. The transverse yarn laying mechanism 30 is installed in the warp knitting frame 11. The bottom of the tension frame 51 is installed in the middle of the installation ground. The take-up frame 52 is installed at the end of the installation ground away from the warp knitting frame 11. The top of the rotating tensioning frame 61 is rotatably installed in the guide tensioning turntable 511. The rotating adjustment motor is installed on the inner side of the top surface of the tension frame 51, and the output shaft of the rotating adjustment motor is connected to the top end of the rotating tensioning frame 61. The feed roller 63 is rotatably installed on the rotating tensioning frame. At the bottom of the rotating tensioning frame 61, two pressure cylinders 64 are respectively installed at both ends of the middle part of the frame. Pressure rollers 65 are rotatably mounted on the output shafts of the two pressure cylinders 64 at both ends. Pressing rotary cutters 66 are rotatably mounted at both ends of the bottom of the rotating tensioning frame 61 and adjacent to the pressure rollers 65. Spreading rollers 71 are rotatably mounted at both ends of two spreading turntables 510. Upper shaping rollers 73 are rotatably mounted at both ends of two upper pressing turntables 514. Lower shaping rollers 74 are rotatably mounted at both ends of two lower pressing turntables 515. Two pressing adjusting cylinders 721 are respectively installed at the bottom of two pressing adjusting tables 512. Two pressing adjusting slides 722 are installed at the top of both ends of the tensioning frame 51. The bottom of the lower pressure roller 723 is installed on the pre-bending mounting plate 513. At the center of the outer side of the top surface, the upper sliding plate 724 is slidably installed at both ends in two pressing adjustment slide columns 722, and the bottom ends of the upper sliding plate 724 are respectively connected to the output shafts of two pressing adjustment cylinders 721. The top of the upper pressure roller 725 is installed at the center of the bottom surface of the upper sliding plate 724. One end of the pressing seat 726 is installed at the center of the outer side of the top surface of the pre-bent mounting plate 513 or the center of the bottom surface of the upper sliding plate 724. The two ends of the pressing shaft 727 are rotatably installed at both ends of the pressing groove 729. Multiple cylindrical airbags 728 are installed at intervals along the length direction in the pressing shaft 727, and an air venting gap 764 is formed between the outer wall of the cylindrical airbag 728 and the inner wall of the pressing groove 729. The first pressing mounting plate 751 and the second transverse pressing mounting plate 75 are connected. The outer ends are respectively installed at both ends of the middle of the outer side of the traction frame 51. The vertical pressure motor 752 is installed at the bottom of the first pressure mounting plate 751. The third helical gear 773 is meshed with the first helical gear 758. One of the sliding mounting blocks 778 is installed on both sides in the vertical adjustment slide rail 756 and the vertical threaded column 757. The top and bottom of the other sliding mounting block 778 are respectively installed in the horizontal adjustment slide rail 759 and the horizontal threaded column 771. The two winding pressure rollers 81 are respectively rotatably installed in the middle and the top of the inner side of the winding frame 52. The pressure rotation motor 83 is installed at one end of the winding frame 52 and is connected to one end of one of the winding pressure rollers 81. The floating roller 82 is installed on the outer side of the winding frame 52.

[0062] This invention can achieve:

[0063] 1. This case can provide fabrics with high tear strength. When tearing force is applied, the weft yarn will absorb the lateral force and disperse the stress, causing the tearing force to be forced to change direction or stop, thereby increasing the tear strength of the fabric and preventing it from coming apart, ensuring the integrity of the fabric.

[0064] 2. This invention ensures that the tension of the woven fabric is uniform and moderate, reducing deformation and damage. It also utilizes the spreading roller 71 to shrink the edge and push it outward, eliminating the tendency to roll up caused by internal stress, ensuring the flatness and appearance quality of the fabric. At the same time, it uses the winding pressing element 72 and the bending pressure element 75 to enhance the interlayer bonding of the woven fabric and eliminate rebound stress, preventing the inner layer from rebounding and wrinkling, and improving the stability and hand feel of the fabric.

[0065] 3. This invention can monitor the collapse of woven fabric edges and damage to functional coatings in real time, promptly detect fabric abnormalities, and prevent deformation or damage to woven fabrics caused by excessive or insufficient local pressure by dynamically adjusting the pressure intensity and position, thereby extending the service life of the fabric.

[0066] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A fabric weaving apparatus, characterized by: The invention discloses a warp knitting machine, which comprises a warp knitting mechanism (10), a guide bar shifting mechanism (20), a horizontal yarn laying mechanism (30) and a pulling and winding mechanism (40). The warp knitting mechanism (10) comprises a warp knitting frame (11), a warp knitting output assembly (12), a plurality of knitting needles (13), a sinker (14) and a plurality of guide needles (15). The warp knitting frame (11) is installed at one end of the installation ground. The pulling and winding mechanism (40) is installed at the other end of the installation ground. The warp knitting output assembly (12), the plurality of knitting needles (13), the sinker (14) and the plurality of guide needles (15) are all installed in the warp knitting frame (11). The sinker (14) is used for fixing the position of the old loop, preventing the fabric from floating up and assisting in forming the new loop. The warp knitting output assembly (12) is used for synchronizing the movement timing of the plurality of knitting needles (13), the sinker (14) and the plurality of guide needles (15). The guide bar shifting mechanism (20) comprises a servo motor (21) and a cam (22), which are both installed in the warp knitting frame (11) and used for driving the plurality of guide needles (15) to shift left and right, accurately controlling the shifting amount and direction. The horizontal yarn laying mechanism (30) is installed in the warp knitting frame (11) and used for laying the weft yarn horizontally in the full-width weft manner. The pulling and winding mechanism (40) comprises a frame assembly (50), a guide tensioning assembly (60), a pre-bending assembly (70) and a winding assembly (80). The frame assembly (50) comprises a pulling frame (51) and a winding frame (52). The pulling frame (51) is installed at the middle of the installation ground. The winding frame (52) is installed at the end of the installation ground away from the warp knitting frame (11). The pulling frame (51) is provided with a guide tensioning turntable (511) on the inner side of the top surface of the middle part. The pulling frame (51) is provided with a pressing and adjusting table (512) on the outer side of each end of the bottom. The pulling frame (51) is provided with a pre-bending mounting plate (513) in the middle part. The pre-bending mounting plate (513) is provided with a width expanding turntable (510) on the inner side of the top surface of each end. The pulling frame (51) is provided with an upper pressing turntable (514) and a lower pressing turntable (515) on the outer side of the middle part. The pulling frame (51) is provided with a first transmission turntable (516) on the outer side of the bottom of each end. The pulling frame (51) is provided with an output turntable (518) on the inner end of the bottom of each end. The pulling frame (51) is provided with an inlet roller (519) on the inner end of the middle part. The guide tensioning assembly (60) is installed on the guide tensioning turntable (511). The pre-bending assembly (70) is installed on the two pressing and adjusting tables (512), the pre-bending mounting plate (513), the two upper pressing turntables (514) and the two lower pressing turntables (515). The winding assembly (80) is installed in the winding frame (52). The guide and tensioning assembly (60) comprises a rotating tensioning frame (61), a rotating adjusting motor, an entry roller (63), two pressure cylinders (64), a pressure roller (65) and a pressing rotary knife (66). The rotating tensioning frame (61) is rotatably installed on the guide and tensioning rotary table (511). The rotating adjusting motor is installed on the inner side of the top surface of the pulling frame body (51). The output shaft of the rotating adjusting motor is connected with one end of the top of the rotating tensioning frame (61). The entry roller (63) is rotatably installed on the bottom of the rotating tensioning frame (61). The two pressure cylinders (64) are respectively installed on the two ends of the middle part of the rotating tensioning frame (61). The pressure roller (65) is rotatably installed on the output shafts of the two pressure cylinders (64). The pressing rotary knife (66) is rotatably installed on the bottom of the rotating tensioning frame (61) and is adjacent to the pressure roller (65).

2. The fabric knitting apparatus according to claim 1, wherein: One end of the pressing rotary knife (66) is provided with a pressing rotary motor. The bottom of the middle part of the rotating tensioning frame (61) is provided with a sensor mounting bracket (611). The sensor mounting bracket (611) is provided with a tension sensor.

3. The fabric knitting apparatus according to claim 2, wherein: The pre-bending assembly (70) comprises a spreading roller (71), a winding and pressing element (72), an upper setting roller (73), a lower setting roller (74) and a bending pressure element (75). The two ends of the spreading roller (71) are rotatably installed in the two spreading rotary tables (510). The winding and pressing element (72) is installed in the two pressing adjusting tables (512) and the pre-bending mounting plate (513). The two ends of the upper setting roller (73) are rotatably installed in the two upper pressing rotary tables (514). The two ends of the lower setting roller (74) are rotatably installed in the two lower pressing rotary tables (515). The bending pressure element (75) is installed on the outer middle part of the pulling frame body (51) and is located between the upper setting roller (73) and the lower setting roller (74).

4. The fabric knitting device of claim 3, wherein: The winding and pressing element (72) comprises two pressing adjusting cylinders (721), two pressing adjusting slide columns (722), a lower pressing roller (723), an upper sliding plate (724) and an upper pressing roller (725). The bottoms of the two pressing adjusting cylinders (721) are respectively installed in the two pressing adjusting tables (512). The two pressing adjusting slide columns (722) are installed on the top of the two ends of the pulling frame body (51). The bottom of the lower pressing roller (723) is installed on the outer middle part of the top surface of the pre-bending mounting plate (513). The two ends of the upper sliding plate (724) are respectively slidably installed in the two pressing adjusting slide columns (722). The bottoms of the two ends of the upper sliding plate (724) are respectively connected with the output shafts of the two pressing adjusting cylinders (721). The top of the upper pressing roller (725) is installed on the middle part of the bottom surface of the upper sliding plate (724).

5. The fabric knitting device of claim 4, wherein: The lower pressing roller (723) and the upper pressing roller (725) each comprise a pressing base (726), a pressing rotating shaft (727) and a plurality of cylindrical air bags (728), one end of the pressing base (726) is installed on the top surface of the outer middle part of the pre-bending mounting plate (513) or the bottom surface of the middle part of the upper sliding plate (724), the other end of the pressing base (726) is concave with a pressing rotating groove (729), the inside of the pressing base (726) is hollow to form a hollow cavity (761), the middle part of one side of the pressing base (726) is concave with a high-temperature air inlet pipe (763), the inner wall of the hollow cavity (761) is concave with a gas guide groove (762), the gas guide groove (762) is communicated with the pressing rotating groove (729), the pressing rotating shaft (727) is rotatably installed at both ends of the pressing rotating groove (729), and the plurality of cylindrical air bags (728) are installed in the pressing rotating shaft (727) along the length direction at intervals.

6. The fabric knitting device of claim 5, wherein: The bending pressing element (75) comprises a first pressing mounting plate (751), a second transverse pressing mounting plate (755), a vertical pressing motor (752) and a bending pressing roller (754), the outer ends of the first pressing mounting plate (751) and the second transverse pressing mounting plate (755) are respectively installed on the both ends of the outer middle part of the pulling frame body (51), the inner ends of the first pressing mounting plate (751) are respectively convex with vertical adjusting slide rails (756) and vertical threaded columns (757), the bottom of the vertical threaded column (757) is provided with a first bevel gear (758), the top and the bottom of the inner end of the second transverse pressing mounting plate (755) are respectively provided with transverse adjusting slide rails (759) and transverse threaded columns (771), one side of the transverse threaded column (771) is provided with a second bevel gear (772), the bottom of the outer side of the second transverse pressing mounting plate (755) is convex with a transverse synchronous rotating table (774), the transverse synchronous rotating table (774) is rotatably provided with a cooling synchronous pipe (775), one end of the cooling synchronous pipe (775) adjacent to the transverse synchronous rotating table (774) is provided with a fourth bevel gear (776), the fourth bevel gear (776) is meshed and connected with the second bevel gear (772), the other end of the cooling synchronous pipe (775) is provided with a transverse adjusting motor, the transverse adjusting motor is installed on the outer middle part of the pulling frame body (51), the vertical pressing motor (752) is installed on the bottom of the first pressing mounting plate (751) and the output shaft thereof is convex with a third bevel gear (773), the third bevel gear (773) is meshed and connected with the first bevel gear (758), the bending pressing roller (754) is rotatably provided with sliding mounting blocks (778) at both ends, the sliding mounting blocks (778) on one side are installed in the vertical adjusting slide rails (756) and the vertical threaded columns (757), and the sliding mounting blocks (778) on the other side are installed in the transverse adjusting slide rails (759) and the transverse threaded columns (771).

7. The fabric knitting device of claim 6, wherein: The take-up assembly (80) comprises two take-up pressure rollers (81), a pressure rotating motor (83) and a floating roller (82), the two take-up pressure rollers (81) are respectively rotatably installed at the top of the middle and inner side of the take-up frame body (52), the pressure rotating motor (83) is installed at one end of the take-up frame body (52), and one end of the pressure rotating motor (83) is connected with one of the take-up pressure rollers (81), and the floating roller (82) is installed at the outer side of the take-up frame body (52).

8. A process for increasing the tear strength of a fabric, applied to the fabric knitting device according to claim 7, characterized in that, The process comprises: Step S1: the warp knitting output assembly (12) drives a plurality of needles (13) to rise from the lowest point, and at this time the needle core is closed; Step S2: the transverse yarn laying mechanism (30) starts to lay the weft yarn on the loops of the plurality of yarns in a full-width weft manner; Step S3: when the plurality of needles (13) reach the clearing height, the needle core is opened, the plurality of needles (13) hook the yarns, and the sinkers (14) press the loops and the weft yarns at this time, and prevent the needles (13) from rising with the needles; Step S4: the servo motor (21) and the cam (22) drive the sinkers (14) to move backward to release the loops and the weft yarns, and drive the plurality of guide needles (15) to move horizontally by one needle position, and the warp knitting output assembly (12) drives the plurality of needles (13) to slightly descend to the laying-in height, so that the plurality of guide needles (15) carry the yarns from the front of the original plurality of needles (13) to the front of the adjacent plurality of needles (13), and make the yarns follow the movement to the adjacent plurality of needles (13); Step S5: the warp knitting output assembly (12) drives the plurality of needles (13) to continue to descend, locks the plurality of yarns in the plurality of needles (13), and makes the old loops from the needle heads of the plurality of needles (13) to be separated, and form a new loop with the new yarns.

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